package org.owasp.webgoat.lessons.admin;

import java.util.Enumeration;
import java.util.Iterator;

import org.apache.ecs.Element;
import org.apache.ecs.ElementContainer;
import org.apache.ecs.HtmlColor;
import org.apache.ecs.html.Center;
import org.apache.ecs.html.Input;
import org.apache.ecs.html.P;
import org.apache.ecs.html.TD;
import org.apache.ecs.html.TH;
import org.apache.ecs.html.TR;
import org.apache.ecs.html.Table;
import org.owasp.webgoat.lessons.AbstractLesson;
import org.owasp.webgoat.lessons.Category;
import org.owasp.webgoat.lessons.LessonAdapter;
import org.owasp.webgoat.session.LessonTracker;
import org.owasp.webgoat.session.Screen;
import org.owasp.webgoat.session.UserTracker;
import org.owasp.webgoat.session.WebSession;

/*******************************************************************************
 * 
 * 
 * This file is part of WebGoat, an Open Web Application Security Project
 * utility. For details, please see http://www.owasp.org/
 * 
 * Copyright (c) 2002 - 2007 Bruce Mayhew
 * 
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU General Public License as published by the Free Software
 * Foundation; either version 2 of the License, or (at your option) any later
 * version.
 * 
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
 * details.
 * 
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
 * Place - Suite 330, Boston, MA 02111-1307, USA.
 * 
 * Getting Source ==============
 * 
 * Source for this application is maintained at code.google.com, a repository
 * for free software projects.
 * 
 * For details, please see http://code.google.com/p/webgoat/
 *
 * @author     Bruce mayhew <a href="http://code.google.com">WebGoat</a>
 * @created    October 28, 2003
 */
public class SummaryReportCardScreen extends LessonAdapter
{

    private int totalUsersNormalComplete = 0;

    private int totalUsersAdminComplete = 0;


    /**
     *  Description of the Method
     *
     * @param  s  Description of the Parameter
     * @return    Description of the Return Value
     */
    protected Element createContent(WebSession s)
    {
	ElementContainer ec = new ElementContainer();

	String selectedUser = null;

	try
	{
	    if (s.getRequest().isUserInRole(WebSession.WEBGOAT_ADMIN))
	    {
		Enumeration e = s.getParser().getParameterNames();

		while (e.hasMoreElements())
		{
		    String key = (String) e.nextElement();
		    if (key.startsWith("View_"))
		    {
			selectedUser = key.substring("View_".length());
			ReportCardScreen reportCard = new ReportCardScreen();
			return reportCard.makeReportCard(s, selectedUser);
		    }
		    if (key.startsWith("Delete_"))
		    {
			selectedUser = key.substring("Delete_".length());
			deleteUser(selectedUser);
		    }
		}
	    }
	}
	catch (Exception e)
	{
	    e.printStackTrace();
	}

	ec.addElement(new Center().addElement(makeSummary(s)));

	ec.addElement(new P());

	Table t = new Table().setCellSpacing(0).setCellPadding(4).setBorder(1)
		.setWidth("100%");
	if (s.isColor())
	{
	    t.setBorder(1);
	}
	t.addElement(makeUserSummaryHeader());

	for (Iterator userIter = UserTracker.instance().getAllUsers(
		WebSession.WEBGOAT_USER).iterator(); userIter.hasNext();)
	{

	    String user = (String) userIter.next();
	    t.addElement(makeUserSummaryRow(s, user));
	}

	ec.addElement(new Center().addElement(t));

	return ec;
    }


    protected Element makeSummary(WebSession s)
    {
	Table t = new Table().setCellSpacing(0).setCellPadding(2).setBorder(0)
		.setWidth("100%");
	if (s.isColor())
	{
	    t.setBorder(1);
	}
	TR tr = new TR();
	//tr.addElement( new TH().addElement( "Summary").setColSpan(1));
	//t.addElement( tr );

	tr = new TR();
	tr.addElement(new TD().setWidth("60%").addElement(
		"Total number of users"));
	tr.addElement(new TD().setAlign("LEFT").addElement(
		Integer.toString(UserTracker.instance().getAllUsers(
			WebSession.WEBGOAT_USER).size())));
	t.addElement(tr);

	tr = new TR();
	tr.addElement(new TD().setWidth("60%").addElement(
		"Total number of users that completed all normal lessons"));
	tr.addElement(new TD().setAlign("LEFT").addElement(
		Integer.toString(totalUsersNormalComplete)));
	t.addElement(tr);

	tr = new TR();
	tr.addElement(new TD().setWidth("60%").addElement(
		"Total number of users that completed all admin lessons"));
	tr.addElement(new TD().setAlign("LEFT").addElement(
		Integer.toString(totalUsersAdminComplete)));
	t.addElement(tr);
	return t;
    }


    private void deleteUser(String user)
    {
	UserTracker.instance().deleteUser(user);
    }


    /**
     *  Gets the category attribute of the UserAdminScreen object
     *
     * @return    The category value
     */
    protected Category getDefaultCategory()
    {
	return ADMIN_FUNCTIONS;
    }

    private final static Integer DEFAULT_RANKING = new Integer(1000);


    protected Integer getDefaultRanking()
    {
	return DEFAULT_RANKING;
    }


    /**
     *  Gets the role attribute of the UserAdminScreen object
     *
     * @return    The role value
     */
    public String getRole()
    {
	return ADMIN_ROLE;
    }


    /**
     *  Gets the title attribute of the UserAdminScreen object
     *
     * @return    The title value
     */
    public String getTitle()
    {
	return ("Summary Report Card");
    }


    /**
     *  Description of the Method
     *
     * @param  s  Description of the Parameter
     * @return    Description of the Return Value
     */
    protected Element makeMessages(WebSession s)
    {
	ElementContainer ec = new ElementContainer();

	return (ec);
    }


    /**
     *  Description of the Method
     *
     * @return    Description of the Return Value
     */
    protected Element makeUserSummaryHeader()
    {
	TR tr = new TR();

	tr.addElement(new TH("User Name"));
	tr.addElement(new TH("Normal Complete"));
	tr.addElement(new TH("Admin Complete"));
	tr.addElement(new TH("View"));
	tr.addElement(new TH("Delete"));

	return tr;
    }


    /**
     *  Description of the Method
     *
     * @param  s     Description of the Parameter
     * @param  user  Description of the Parameter
     * @return       Description of the Return Value
     */
    protected Element makeUserSummaryRow(WebSession s, String user)
    {
	TR tr = new TR();

	tr.addElement(new TD().setAlign("LEFT").addElement(user));
	int lessonCount = 0;
	int passedCount = 0;
	boolean normalComplete = false;
	boolean adminComplete = false;

	for (Iterator lessonIter = s.getCourse().getLessons(s,
		AbstractLesson.USER_ROLE).iterator(); lessonIter.hasNext();)
	{
	    lessonCount++;
	    Screen screen = (Screen) lessonIter.next();

	    LessonTracker lessonTracker = UserTracker.instance()
		    .getLessonTracker(s, user, screen);
	    if (lessonTracker.getCompleted())
	    {
		passedCount++;
	    }
	}
	if (lessonCount == passedCount)
	{
	    normalComplete = true;
	    totalUsersNormalComplete++;
	}
	String text = Integer.toString(passedCount) + " of "
		+ Integer.toString(lessonCount);
	tr.addElement(new TD().setAlign("CENTER").addElement(text));

	lessonCount = 0;
	passedCount = 0;
	for (Iterator lessonIter = s.getCourse().getLessons(s,
		AbstractLesson.HACKED_ADMIN_ROLE).iterator(); lessonIter
		.hasNext();)
	{
	    lessonCount++;
	    Screen screen = (Screen) lessonIter.next();

	    LessonTracker lessonTracker = UserTracker.instance()
		    .getLessonTracker(s, user, screen);
	    if (lessonTracker.getCompleted())
	    {
		passedCount++;
	    }
	}
	if (lessonCount == passedCount)
	{
	    adminComplete = true;
	    totalUsersAdminComplete++;
	}
	text = Integer.toString(passedCount) + " of "
		+ Integer.toString(lessonCount);
	tr.addElement(new TD().setAlign("CENTER").addElement(text));

	tr.addElement(new TD().setAlign("CENTER").addElement(
		new Input(Input.SUBMIT, "View_" + user, "View")));
	tr.addElement(new TD().setAlign("CENTER").addElement(
		new Input(Input.SUBMIT, "Delete_" + user, "Delete")));

	if (normalComplete && adminComplete)
	{
	    tr.setBgColor(HtmlColor.GREEN);
	}
	else if (normalComplete)
	{
	    tr.setBgColor(HtmlColor.LIGHTGREEN);
	}
	else
	{
	    tr.setBgColor(HtmlColor.LIGHTBLUE);
	}

	return (tr);
    }


    public boolean isEnterprise()
    {
	return true;
    }
}
